An individual basidium ultimately produces
A. eight diploid spores.
B. four genetically identical haploid spores.
C. four haploid spores, each genetically different.
D. eight identical haploid spores.
E. eight haploid spores, of which there are two each of four different genetic types.
C. four haploid spores, each genetically different.
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Charles Darwin's observations while aboard the HMS Beagle led eventually to the:
a. idea that life started on land. b. theory that life's origin was in fresh water. c. theory for the process that causes evolution. d. re-birth of marine biology. e. idea that life could not survive in the deep sea.
The maximum density of pure water occurs at:
a. -2° C. b. 0° C. c. 3° C. d. 4° C. e. -4° C.
A species with a relatively constant rate of mortality in all age classes would most likely exhibit which
of the following survivorship curves?
a. Type I, which is graph A b. Type II, which is graph B c. Type I, which is graph C d. Type III, which is graph C e. Type III, which is graph A
A gene that affects three traits is _____
a. epistatic b. a multiple allele system c. pleiotropic d. dominant